PageSourceSearch / Technologies / JavaScript libraries / Parsley JavaScript libraries
Websites using Parsley
Parsley is a JavaScript form validation library.
About 13,521 websites in the PageSourceSearch index contain the code that reveals it; the 50 highest-ranked are listed below.
How is Parsley detected?
Forms opt into validation with the data-parsley-validate attribute. The discovery keyword is the exact bytes PageSourceSearch looks for in every stored page and script:
data-parsley-validate Search the index for it
A literal is matched byte for byte, case-sensitively. Combine it with another keyword, a domain, a kind or a date filter on the search page to narrow the list. About Parsley
Top 50 websites using Parsley
Ranked by the domain's position in the crawl's ranked list (Common Crawl harmonic centrality), highest first. view source opens the stored page or script with the match highlighted. Computed 2026-09-29 20:06:36 UTC.
# Website Rank Found in
1
playstation.com 737
js https://www.playstation.com/etc.clie…1600b777f8e2c-lc.min.js
view source profile
2
heise.de 864
js https://www.heise.de/download/resources/dist/main.js?4
view source profile
3
pdffiller.com 1,064
js https://static-ak.pdffiller.com/mrk/…/page-header.js
view source profile
4
laverdad.es 1,361
html https://seguros-coches.laverdad.es/b…&utm_id=laverdad.es
view source profile
5
mailjet.com 2,312
js https://assets.mailjet.com/build/common-c42308270a6940b6.js
view source profile
6
informs.org 2,314
js https://myaccount.informs.org/resour…/vendor.min.js
view source profile
7
redditinc.com 2,349
js https://redditinc.com/hubfs/hub_gene…/template_filter.min.js
view source profile
8
klicksafe.de 2,505
html https://www.klicksafe.de/kontakt
view source profile
9
eurid.eu 2,683
js https://my.eurid.eu/static/dist/js/main.ae0e7be70aa5.js
view source profile
10
charitywater.org 2,873
html https://www.charitywater.org/account/register
view source profile
11
denic.de 2,916
js https://member.secure.denic.de/asset…/denic.js?1788874360
view source profile
12
quebec.ca 3,347
html https://www.quebec.ca/nous-joindre/renseignements-generaux
view source profile
13
cancer.org 3,435
js https://www.cancer.org/etc.clientlib…bcf32140d3538-lc.min.js
view source profile
14
jamf.com 3,650
js https://www.jamf.com/js/jamf-forms.min.js?v=20260824083551
view source profile
15
shareaholic.com 3,727
js https://www.shareaholic.com/blog/wp-…arsley.min.js?ver=2.5.1
view source profile
16
uni-hannover.de 4,303
js https://www.lse.uni-hannover.de/typo…/app.min.js?1788946925
view source profile
17
pearson.com 4,826
js https://www.pearson.com/etc/clientli…52b3d4b9e80b17f0b476.js
view source profile
18
univie.ac.at 5,895
js https://studieren.univie.ac.at/filea…/Js/tabs.js?1679058888
view source profile
19
regeringen.se 6,871
html https://regeringen.se/prenumerera-via-e-post/
view source profile
20
equifax.com 7,344
js https://assets.equifax.com/global/js/parsley.min.js
view source profile
21
akc.org 7,414
js https://webapps.akc.org/latest/V3/scripts/global.js
view source profile
22
unibas.ch 7,547
js https://www.unibas.ch/fallback/.reso…5-13-03-36-000~cache.js
view source profile
23
wyndhamhotels.com 8,048
html https://www.wyndhamhotels.com/
view source profile
24
charite.de 8,309
js https://www.charite.de/typo3conf/ext…ntend.min.js?1789735190
view source profile
25
waikato.ac.nz 8,753
js https://my.waikato.ac.nz/sitsvision/…/js/parsley.min.js
view source profile
26
bhf.org.uk 8,757
html https://www.bhf.org.uk/account/sign-in
view source profile
27
uni-due.de 8,888
js https://www.uni-due.de/portal/4/js/c…?20260909094738
view source profile
28
taylorswift.com 9,169
js https://www.taylorswift.com/wp-conte…sley.min.js?ver=2.14.38
view source profile
29
uakron.edu 9,537
js https://www.uakron.edu/application/t…/js/parsley.min.js
view source profile
30
smb.museum 9,569
js https://www.smb.museum/typo3temp/ass…46ba22dc3.js?1788940102
view source profile
31
pearsonvue.com 10,170
html https://www.pearsonvue.com/
view source profile
32
coconuts.co 10,953
js https://coconuts.co/wp-content/cache…3c6ff1b79a07.lib.min.js
view source profile
33
eucoc.cloud 11,333
js https://eucoc.cloud/typo3conf/ext/po…rsley.min.js?1642711842
view source profile
34
kexp.org 11,926
js https://kexp.org/static/assets/js/main.js
view source profile
35
universalmusic.com 12,364
html https://www.universalmusic.com/
view source profile
36
childrenssociety.org.uk 13,111
html https://www.childrenssociety.org.uk/
view source profile
37
hood.de 13,228
html https://www.hood.de/
view source profile
38
theaseanpost.com 13,379
js https://theaseanpost.com/sites/defau…E7SkkSkUQoqDK98DkVZU.js
view source profile
39
adcouncil.org 13,438
html https://adcouncil.org/
view source profile
40
ifj.org 13,899
js https://www.ifj.org/typo3temp/assets…51ca.js.gzip?1721216770
view source profile
41
inesctec.pt 14,291
js https://www.inesctec.pt/assets/js/main.min.js?v=0.5
view source profile
42
tenderapp.com 14,512
html https://tenderapp.com/
view source profile
43
app-wallee.com 15,013
html https://app-wallee.com/fr-fr/user/login
view source profile
44
oeko.de 15,073
html https://www.oeko.de/
view source profile
45
eroski.es 15,157
js https://www.eroski.es/wp-content/the…/custom-plugins.min.js
view source profile
46
baskinrobbins.com 15,347
js https://www.baskinrobbins.com/etc/de…07446d50296a7a781077.js
view source profile
47
mackenzie.br 15,401
html https://www.mackenzie.br/pos-graduac…-product-ops-operations
view source profile
48
gapminder.org 15,745
js https://www.gapminder.org/wp-content…arsley.min.js?ver=2.3.7
view source profile
49
plumvillage.org 15,980
js https://plumvillage.org/wp-content/t…?ver=1790098876
view source profile
50
represent.us 16,489
html https://represent.us/
view source profile
How it appears in the source
From playstation.com (js):
ssage:n,assert:r,updateClass:a})}}),!1!==window.ParsleyConfig.autoBind&&t(function(){t("[data-parsley-validate]").length&&t("[data-parsley-validate]").parsley()});var D=t({}),q=function(){m.warnOnce("
See every site: search for data-parsley-validate
Questions about finding Parsley
How does PageSourceSearch know a website uses Parsley?
By the source itself: Forms opt into validation with the data-parsley-validate attribute. PageSourceSearch stores the raw HTML and first-party JavaScript of each crawled site and matches the keyword byte for byte, so every listed site's stored source contains it.
Is this a complete list of websites using Parsley?
No. The page lists the 50 highest-ranked sites in the index whose source holds the keyword, out of about 13,521 websites that do; the count is the index's estimate at the time the list was computed. Run the keyword as a search to page through all of them, or add a kind or date filter.
How do I find websites that use Parsley together with another technology?
Search for both keywords at once: several terms separated by spaces must all be found on the same site, or with the Same page toggle in the same page. For example data-parsley-validate with wp-content/plugins/ lists the WordPress sites that use Parsley.